Pith Number

pith:CF4ZQXIE

pith:2000:CF4ZQXIE4RSO3ZLAKPVGVDJHKY

not attested not anchored not stored refs pending

IRAM observations of JVAS/CLASS gravitational lenses

E. Xanthopoulos (JBO), F. Combes (DEMIRM), T. Wiklind (Onsala)

arxiv:astro-ph/0010454 v1 · 2000-10-23 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CF4ZQXIE4RSO3ZLAKPVGVDJHKY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T16:17:26.906873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1179985d04e464ede56053ea6a8d275605da00bfd39bad28fd80d549269e1073

Aliases

arxiv: astro-ph/0010454 · arxiv_version: astro-ph/0010454v1 · doi: 10.48550/arxiv.astro-ph/0010454 · pith_short_12: CF4ZQXIE4RSO · pith_short_16: CF4ZQXIE4RSO3ZLA · pith_short_8: CF4ZQXIE

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/CF4ZQXIE4RSO3ZLAKPVGVDJHKY \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 1179985d04e464ede56053ea6a8d275605da00bfd39bad28fd80d549269e1073

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c075dc9e0122ff409156114415db67f3ed24891e25cca4f4a3f1fb58d6b01f51",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-10-23T15:47:41Z",
    "title_canon_sha256": "d3590705b9d3e0eb11a3df7231f70ad0f14c2985de9cd49ab60c1fda2cc88457"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0010454",
    "kind": "arxiv",
    "version": 1
  }
}